src/hooks/ports/bonding

   1 #!/bin/bash
   2 ###############################################################################
   3 #                                                                             #
   4 # IPFire.org - A linux based firewall                                         #
   5 # Copyright (C) 2010  Michael Tremer & Christian Schmidt                      #
   6 #                                                                             #
   7 # This program is free software: you can redistribute it and/or modify        #
   8 # it under the terms of the GNU General Public License as published by        #
   9 # the Free Software Foundation, either version 3 of the License, or           #
  10 # (at your option) any later version.                                         #
  11 #                                                                             #
  12 # This program is distributed in the hope that it will be useful,             #
  13 # but WITHOUT ANY WARRANTY; without even the implied warranty of              #
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               #
  15 # GNU General Public License for more details.                                #
  16 #                                                                             #
  17 # You should have received a copy of the GNU General Public License           #
  18 # along with this program.  If not, see <http://www.gnu.org/licenses/>.       #
  19 #                                                                             #
  20 ###############################################################################
  21
  22 . /usr/lib/network/header-port
  23
  24 HOOK_SETTINGS="HOOK ADDRESS MIIMON MODE SLAVES"
  25
  26 SLAVES=""
  27 MIIMON=100
  28 MODE="balance-rr"
  29
  30 hook_check_settings() {
  31         assert isset ADDRESS
  32         assert ismac ADDRESS
  33
  34         #assert isset SLAVES
  35         assert isinteger MIIMON
  36 }
  37
  38 hook_parse_cmdline() {
  39         while [ $# -gt 0 ]; do
  40                 case "${1}" in
  41                         --address=*)
  42                                 ADDRESS=$(cli_get_val "${1}")
  43                                 ;;
  44                         --miimon=*)
  45                                 MIIMON=$(cli_get_val "${1}")
  46                                 ;;
  47                         --mode=*)
  48                                 MODE=$(cli_get_val "${1}")
  49                                 ;;
  50                         +*)
  51                                 local slave=$(cli_get_val "${1:1}")
  52
  53                                 if port_exists "${slave}"; then
  54                                         if list_match "${slave}" ${SLAVES}; then
  55                                                 warning "Port ${slave} is already enslaved"
  56                                         else
  57                                                 list_append SLAVES "${slave}"
  58                                         fi
  59                                 else
  60                                         warning "Port ${slave} does not exist"
  61                                 fi
  62                                 ;;
  63                         -*)
  64                                 local slave=$(cli_get_val "${1:1}")
  65                                 if ! list_remove SLAVES "${slave}"; then
  66                                         warning "Port ${slave} is not a slave of this bonding device"
  67                                 fi
  68                                 ;;
  69                         *)
  70                                 warning "Unknown argument '${1}'"
  71                                 ;;
  72                 esac
  73                 shift
  74         done
  75
  76         if isset ADDRESS; then
  77                 if ! ismac ADDRESS; then
  78                         error "The given MAC address is invalid: ${ADDRESS}"
  79                         return ${EXIT_ERROR}
  80                 fi
  81         else
  82                 ADDRESS=$(mac_generate)
  83         fi
  84 }
  85
  86 hook_new() {
  87         if ! hook_parse_cmdline "$@"; then
  88                 return ${EXIT_ERROR}
  89         fi
  90
  91         # Find a new name
  92         local port=$(port_find_free ${BONDING_PORT_PATTERN})
  93         assert isset port
  94
  95         # Save configuration
  96         if port_settings_write "${port}" ${HOOK_SETTINGS}; then
  97                 log INFO "New port ${port} has been created"
  98         else
  99                 error "Could not save configuration for ${port}"
 100                 return ${EXIT_ERROR}
 101         fi
 102
 103         return ${EXIT_OK}
 104 }
 105
 106 hook_edit() {
 107         local port=${1}
 108
 109         if ! hook_default_edit "$@"; then
 110                 return ${EXIT_ERROR}
 111         fi
 112
 113         # If the master device is up, make sure that all
 114         # slaves are up, too
 115         if device_exists "${port}"; then
 116                 # Setting the mode requires us to destroy the device
 117                 # and to recreate it again.
 118                 local mode=$(bonding_get_mode "${port}")
 119                 if [ "${mode}" != "${MODE}" ]; then
 120                         port_restart "${port}"
 121                         return ${EXIT_OK}
 122                 fi
 123
 124                 # Set address
 125                 device_set_address "${port}" "${ADDRESS}"
 126
 127                 # Set miimon
 128                 bonding_set_miimon "${port}" "${MIIMON}"
 129
 130                 local slave
 131                 for slave in ${SLAVES}; do
 132                         if device_exists "${slave}"; then
 133                                 bonding_enslave_device "${port}" "${slave}"
 134                         else
 135                                 port_create "${slave}"
 136                         fi
 137                 done
 138         fi
 139 }
 140
 141 hook_create() {
 142         local port="${1}"
 143         assert isset port
 144
 145         # Exit silently if the device already exists
 146         device_exists "${port}" && exit ${EXIT_OK}
 147
 148         port_settings_read "${port}" ${HOOK_SETTINGS}
 149
 150         # Create the bonding devices
 151         bonding_create "${port}" \
 152                 --address="${ADDRESS}" \
 153                 --mode="${MODE}" || exit ${EXIT_ERROR}
 154
 155         bonding_set_miimon "${port}" "${MIIMON}"
 156
 157         exit ${EXIT_OK}
 158 }
 159
 160 hook_remove() {
 161         local port="${1}"
 162         assert isset port
 163
 164         port_settings_read "${port}" ${HOOK_SETTINGS}
 165
 166         # Remove the bonding device
 167         if device_exists "${port}"; then
 168                 bonding_remove "${port}"
 169         fi
 170 }
 171
 172 hook_up() {
 173         local port="${1}"
 174         assert isset port
 175
 176         port_settings_read "${port}" ${HOOK_SETTINGS}
 177
 178         # Execute the default action
 179         hook_default_up "${port}"
 180
 181         # Bring up all slaves
 182         local slave
 183         for slave in $(unquote ${SLAVES}); do
 184                 port_up "${slave}"
 185         done
 186 }
 187
 188 hook_down() {
 189         local port="${1}"
 190         assert isset port
 191
 192         port_settings_read "${port}" ${HOOK_SETTINGS}
 193
 194         # Bring down all slaves
 195         local slave
 196         for slave in $(unquote ${SLAVES}); do
 197                 port_down "${slave}"
 198         done
 199
 200         # Execute the default action
 201         hook_default_down "${port}"
 202 }
 203
 204 hook_hotplug() {
 205         local port="${1}"
 206         assert isset port
 207
 208         case "$(hotplug_action)" in
 209                 add)
 210                         # Handle events of the same interface
 211                         if hotplug_event_port_is_interface "${port}"; then
 212                                 # Read configuration
 213                                 port_settings_read "${port}" ${HOOK_SETTINGS}
 214
 215                                 # Bring up all slaves
 216                                 # Attach those which already exist and try to create
 217                                 # those which don't exist yet. They will be attached
 218                                 # in their own hotplug event.
 219                                 local slave
 220                                 for slave in $(unquote ${SLAVES}); do
 221                                         if device_exists "${slave}"; then
 222                                                 bonding_enslave_device "${port}" "${slave}"
 223                                         else
 224                                                 port_create "${slave}"
 225                                         fi
 226                                 done
 227
 228                                 exit ${EXIT_OK}
 229
 230                         # Handle slave devices that have just been created and
 231                         # attach them.
 232                         elif hotplug_event_interface_is_slave_of_port "${port}"; then
 233                                 bonding_enslave_device "${port}" "${INTERFACE}"
 234
 235                                 # If the parent device has been set up, we will
 236                                 # bring up the slave device as well.
 237                                 if device_is_up "${port}"; then
 238                                         port_up "${INTERFACE}"
 239                                 fi
 240                         fi
 241
 242                         exit ${EXIT_OK}
 243                         ;;
 244
 245                 remove)
 246                         if hotplug_event_port_is_interface "${port}"; then
 247                                 # Bring down all slaves after the parent device went away
 248                                 local slave
 249                                 for slave in $(port_get_slaves "${port}"); do
 250                                         port_remove "${slave}"
 251                                 done
 252
 253                                 exit ${EXIT_OK}
 254                         fi
 255                         ;;
 256         esac
 257
 258         exit ${EXIT_NOT_HANDLED}
 259 }